North American Numbers
State · 8 area codes
Wisconsin area codes
Wisconsin has seven area codes serving Milwaukee, Madison, Green Bay and the northern region.
A · Metros
Major metro areas
Milwaukee Madison Green Bay Kenosha
B · Directory
All Wisconsin area codes
Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.
Sources
Wikipedia ↗
List of Wisconsin area codes (secondary)
Compiled by North American Numbers, last checked 2026-09-19. How this is made.